Mercedes' Robert Wickens has fired a warning shot towards BMW's Marco Wittmann by stating his intention to the reclaim the DTM series lead this weekend at the Nurburgring.

Wickens heads into the seventh weekend of the campaign as Wittmann's chief championship rival, sitting just 12-points behind the 26-year old German.

The top-two championship runners both won a race apiece at the Moscow Raceway to establish a clear gap between themselves and Audi's Jamie Green in third.

While Wittmann took a commanding win during the second Russian race, fifth place for Wickens was a particular source of value, given the Canadian valiantly battled through power steering issues to rescue ten vital championship points.

Returning to the scene of his first ever DTM win in 2013, Wickens said: "I am always very excited about returning to the N?rburgring. It was there in 2013 that I won my first ever DTM race.

"The weather on that occasion was atrocious. Typical of the N?rburgring, you might say. At times, I didn't even know what position I was in. You often get races like that in the Eifel.

"If the result this weekend is the same as then, I won't mind one bit. Hopefully, we can reclaim the lead in the championship at the N?rburgring.

"To do that, though, we need to have a perfect weekend! But anyway, I've got a great team backing me up, and together we have what it takes to succeed."

Such was the pace of the C63 Coupe during the wet conditions in Russia, Mercedes DTM boss Ulrich Fritz admits he hopes the infamous Eifel weather will play its part over the weekend.

Aided by a dominant Saturday display amidst the atrocious conditions at the Moscow Raceway, Mercedes has closed to within four-points of Audi, who sit second in the manufacturers' table.

"We came away from the two races at the N?rburgring last year with nine Top Ten finishes and two podiums. However, we didn't quite make it onto the top rung. We intend to rectify that this weekend," said Fritz.

"Perhaps we'll have some luck in terms of the weather. In the Eifel, rain is famously not an uncommon occurrence, and we saw in Moscow how well our car works in the wet.

"Broadly speaking, though, I'm anticipating a hard-fought and close weekend because we are after all entering the decisive phase of the championship battle."